A three-species model for steady-state negative corona discharge has been considered, with
focus on geometries occurring in electrostatic precipitators and automotive spray painting.
The model incorporates electrons as well as positive and negative ions, which are subject to
ionization and attachment reactions. By using the three-species model it is possible to resolve
the ionization region, which is not the case in one-species models for corona discharge, although
these are commonly used in applications. In this work, we present an approach to solve the
three-species problem by decomposing the domain into a one- and three-species part. This
is based on that electrons and positive ions exclusively reside in the ionization region, which
typically has a small spatial extent. It is an efficient approach as the one-species model is
significantly less computationally demanding than the three-species model. The approach is
implemented by coupling a structured finite-volume Newton solver for the one-species model
and an unstructured finite-volume solver for the three-species model. The implemented solver
is validated by considering a one dimensional test case with coaxial cylinders.
The usefulness of the implemented solver is illustrated by solving the three-species problem
for a range of geometries of interest to electrostatic precipitators and automotive spray painting.
Specifically, we consider electrostatic precipitators with wires that are arranged between parallel
plates. The results for these geometries are then used to perform coupled electrostatic-,
uidand
particle-simulations to determine the particle collection eficiency, which is a performance
measure for an electrostatic precipitator. Regarding automotive spray painting, we consider
two dimensional analogs of the ABB G1 rotary spray bell. We indicate that the results from
three-species simulations can be used to parametrize boundary conditions for a one-species
solver. This could be a way to efficiently incorporate results from the three-species model in
simulations that optimize the spray painting process.
Keywords: negative corona discharge, three-species model, domain decomposition, finitevolume
discretization, electrostatic precipitator, automotive spray painting.

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BibTeX @mastersthesis{Svedung Wettervik2015,author={Svedung Wettervik, Benjamin},title={Three-species negative corona discharge simulations using domain decomposition},abstract={A three-species model for steady-state negative corona discharge has been considered, with
focus on geometries occurring in electrostatic precipitators and automotive spray painting.
The model incorporates electrons as well as positive and negative ions, which are subject to
ionization and attachment reactions. By using the three-species model it is possible to resolve
the ionization region, which is not the case in one-species models for corona discharge, although
these are commonly used in applications. In this work, we present an approach to solve the
three-species problem by decomposing the domain into a one- and three-species part. This
is based on that electrons and positive ions exclusively reside in the ionization region, which
typically has a small spatial extent. It is an efficient approach as the one-species model is
significantly less computationally demanding than the three-species model. The approach is
implemented by coupling a structured finite-volume Newton solver for the one-species model
and an unstructured finite-volume solver for the three-species model. The implemented solver
is validated by considering a one dimensional test case with coaxial cylinders.
The usefulness of the implemented solver is illustrated by solving the three-species problem
for a range of geometries of interest to electrostatic precipitators and automotive spray painting.
Specifically, we consider electrostatic precipitators with wires that are arranged between parallel
plates. The results for these geometries are then used to perform coupled electrostatic-,
uidand
particle-simulations to determine the particle collection eficiency, which is a performance
measure for an electrostatic precipitator. Regarding automotive spray painting, we consider
two dimensional analogs of the ABB G1 rotary spray bell. We indicate that the results from
three-species simulations can be used to parametrize boundary conditions for a one-species
solver. This could be a way to efficiently incorporate results from the three-species model in
simulations that optimize the spray painting process.
Keywords: negative corona discharge, three-species model, domain decomposition, finitevolume
discretization, electrostatic precipitator, automotive spray painting.},publisher={Institutionen för teknisk fysik, Chalmers tekniska högskola},place={Göteborg},year={2015},note={55},}

RefWorks RT GenericSR ElectronicID 218348A1 Svedung Wettervik, BenjaminT1 Three-species negative corona discharge simulations using domain decompositionYR 2015AB A three-species model for steady-state negative corona discharge has been considered, with
focus on geometries occurring in electrostatic precipitators and automotive spray painting.
The model incorporates electrons as well as positive and negative ions, which are subject to
ionization and attachment reactions. By using the three-species model it is possible to resolve
the ionization region, which is not the case in one-species models for corona discharge, although
these are commonly used in applications. In this work, we present an approach to solve the
three-species problem by decomposing the domain into a one- and three-species part. This
is based on that electrons and positive ions exclusively reside in the ionization region, which
typically has a small spatial extent. It is an efficient approach as the one-species model is
significantly less computationally demanding than the three-species model. The approach is
implemented by coupling a structured finite-volume Newton solver for the one-species model
and an unstructured finite-volume solver for the three-species model. The implemented solver
is validated by considering a one dimensional test case with coaxial cylinders.
The usefulness of the implemented solver is illustrated by solving the three-species problem
for a range of geometries of interest to electrostatic precipitators and automotive spray painting.
Specifically, we consider electrostatic precipitators with wires that are arranged between parallel
plates. The results for these geometries are then used to perform coupled electrostatic-,
uidand
particle-simulations to determine the particle collection eficiency, which is a performance
measure for an electrostatic precipitator. Regarding automotive spray painting, we consider
two dimensional analogs of the ABB G1 rotary spray bell. We indicate that the results from
three-species simulations can be used to parametrize boundary conditions for a one-species
solver. This could be a way to efficiently incorporate results from the three-species model in
simulations that optimize the spray painting process.
Keywords: negative corona discharge, three-species model, domain decomposition, finitevolume
discretization, electrostatic precipitator, automotive spray painting.PB Institutionen för teknisk fysik, Chalmers tekniska högskola,LA engLK http://publications.lib.chalmers.se/records/fulltext/218348/218348.pdfOL 30